# The orthocenter of the triangle formed by any three tangents to the parabola y2 = 4ax lies on the

1.  Axis

2.  Direcrix

3.  Parabola

4.  latus rectum

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Direcrix

Explanation :
No Explanation available for this question

# The circumcircle of the triangle formed by any three tangents to a parabola passes through

1.  Vertex

2.  Focus

3.  Foot of the directrix

4.  None

4

Focus

Explanation :
No Explanation available for this question

# The feet of the perpendiculars drawn from the focus of a parabola to the sides of the triangle formed by its tangents lie on

1.  X – axis

2.  Y – axis

3.  Directrix

4.  Tangent at the vertex

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Tangent at the vertex

Explanation :
No Explanation available for this question

# If the tangents at the point P and Q on the parabola y2= 4ax meet at T and S is the focus then SP-SQ =

1.  ST

2.  2ST

3.  ST2

4.  2ST2

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ST2

Explanation :
No Explanation available for this question

# If the distance of two points P and Q on the parabola y2 = 4ax are 4 and 9 respectively,then 9  respectively,then the distance of the point of intersection of the tangents at P and Q fro the focus is

1.  8

2.  6

3.  5

4.  13

4

6

Explanation :
No Explanation available for this question

# If the tangents at the points P and Q on the parabola y2 = 4ax meet at T and S is the focus the

1.  TSP = TSQ

2.  TSP

3.  TSP > TSQ

4.  None

4

TSP = TSQ

Explanation :
No Explanation available for this question

# PSQ is a focal chord of a parabola whose focus is S and vertex A PA and Qa are produced to meet to the directrix in R and T respectively. Then

1.  900

2.  600

3.  450

4.  300

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900

Explanation :
No Explanation available for this question

# If L,M,N are three points on the parabola y2= 4ax whose oridinate are in G. P the tangents at L and N meet on the

1.  Parabola

2.  Abscissa of M

3.  Oridinate of M

4.  None

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Abscissa of M

Explanation :
No Explanation available for this question

# The slope of the normal at (at2,2at) of the parabola y2 = 4ax is

1.  l/t

2.  t

3.  -t

4.  -l/t

4

-t

Explanation :
No Explanation available for this question

1.  T

2.  -t-l/t

3.  -t-2/t

4.  None

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